Novel dimeric capsules are generated from the non-covalent assembly of cone calix[5]arenes and alkyldiammonium ions [H3N-(CH2)(n)-NH3](2+) featuring an appropriate length of the spacer joining the two charged end groups. H-1 NMR spectroscopy and electrospray ionisation mass spectrometry provide evidence that in the capsule a single ditopic guest holds together a pair of calix[5]arene units, which are oriented rim-to-rim to form a closed cavity encapsulating the shape-complementary dication.
Guest-induced capsular assembly of calix[5]arenes
GATTUSO, Giuseppe;KOHNKE, Franz Heinrich;NOTTI, Anna;PARISI, Melchiorre;PISAGATTI, Ilenia
2002-01-01
Abstract
Novel dimeric capsules are generated from the non-covalent assembly of cone calix[5]arenes and alkyldiammonium ions [H3N-(CH2)(n)-NH3](2+) featuring an appropriate length of the spacer joining the two charged end groups. H-1 NMR spectroscopy and electrospray ionisation mass spectrometry provide evidence that in the capsule a single ditopic guest holds together a pair of calix[5]arene units, which are oriented rim-to-rim to form a closed cavity encapsulating the shape-complementary dication.File in questo prodotto:
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